GH-4621 added rootElement for Reveal to be configured.
Merge branch 'reveal-events-fix' of github.com:RuslanZavacky/foundation into RuslanZavacky-reveal-events-fix

Conflicts:
	js/foundation/foundation.reveal.js
Rename rootElement setting as root_element to fit Foundation code style
Set default value for reveal root_element
Document root_element setting for reveal
Merge branch '5.3-wip' of github.com:zurb/foundation into 5.3-wip